 /*******************************************************************************
  * Copyright (c) 2000, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.update.search;

 import java.util.ArrayList ;

 import org.eclipse.core.runtime.*;
 import org.eclipse.update.core.*;


 /**
  * This class can be added to the update search request
  * to filter out features that are not part of the specified set.
  *
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @see UpdateSearchRequest
  * @see IUpdateSearchFilter
  * @since 3.0
  */
 public class VersionedIdentifiersFilter extends BaseFilter {
     private ArrayList vids;
     
     public VersionedIdentifiersFilter() {
         this(new VersionedIdentifier[0]);
     }
     
     public VersionedIdentifiersFilter(VersionedIdentifier[] vids) {
         this.vids = new ArrayList (vids.length);
         for (int i=0; i<vids.length; i++)
             this.vids.add(vids[i]);
     }
     
     public void add(VersionedIdentifier vid) {
         vids.add(vid);
     }
     
     public boolean accept(IFeatureReference match) {
         try {
             for (int i=0; i<vids.size(); i++) {
                 VersionedIdentifier vid = (VersionedIdentifier)vids.get(i);
                 // installed version is the same as the match - accept
 if (vid.equals(match.getVersionedIdentifier()))
                     return true;
             }
             return false;
         } catch (CoreException e) {
             return false;
         }
     }
 }

